25044066125 has 16 divisors (see below), whose sum is σ = 33659227056. Its totient is φ = 18494078400.

The previous prime is 25044066109. The next prime is 25044066163. The reversal of 25044066125 is 52166044052.

It can be written as a sum of positive squares in 8 ways, for example, as 5159117929 + 19884948196 = 71827^2 + 141014^2 .

It is not a de Polignac number, because 25044066125 - 2⁴ = 25044066109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7704242 + ... + 7707491.

It is an arithmetic number, because the mean of its divisors is an integer number (2103701691).

Almost surely, 2^25044066125 is an apocalyptic number.

25044066125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25044066125 is a deficient number, since it is larger than the sum of its proper divisors (8615160931).

25044066125 is a wasteful number, since it uses less digits than its factorization.

25044066125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15411761 (or 15411751 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 25044066125 in words is "twenty-five billion, forty-four million, sixty-six thousand, one hundred twenty-five".